Specifications

Chapter 4 BIOS Setup
ReadyBoard 800 Reference Manual 67
♦ Serial 4 – [Disabled], [3F8h], [2F8h], [3E8h], [2E8h], [260h], [3E0h], [2E0h], [220h], [228h],
[238h], or [338h]
This field specifies the base address used for Serial Port 4. If this field is set to [Disabled],
then the port is not used, then no IRQ is assigned, making it available for other devices.
• IRQ – [3], [4], [5], [9], [10], or [11]
This field specifies the IRQ used for Serial Port 4.
• Mode – [RS-232] or [RS-485]
This field specifies the signal mode, RS232, or RS485, used for Serial Port 4. If [RS-485]
mode is selected, the RTS signal should be used to control the direction for this port
(transmit or receive).
• On-Board LPT Port
♦ LPT 1 – [Disabled], [378h], [278h], or [3BCh],
This field specifies the base address used for the Parallel Port (LPT 1).
• IRQ – [none], [1], [3], [4], [5], [6], [7], [9], [10], [11], [12], [14], or [15]
This field specifies the IRQ used for the Parallel Port (LPT 1). If this field is set to
[none], then no IRQ is assigned, making it available for other devices.
• DMA – [3], [2], [1], or [0]
This field specifies the DMA channel used for the Parallel Port (LPT 1). If the LPT 1 field
is set to [Disabled], then no DMA channel is assigned, making it available for other devices.
• Mode – [Standard], [SPP (bi-dir)], [EPP 1.9 + SPP], [EPP 1.7 + ECP], [EPP 1.9 + ECP],
or [ECP]
This field specifies the Mode used for Parallel Port (LPT 1).
• On-Board GPIO Port
These three fields allow you to enable/disable the GPIO port and set the input and output values
of each of the eight GPIO pins or bits on J8 during operation and initialization.
♦ GPIO Port 0x300 – [Disabled] or [Enabled]
∗ If this field is set to [Enabled], then all of the eight pins are available for customer
utilization.
∗ If this field is set to [Disabled], then none of the eight pins are available for customer use.
♦ Port Mask (In = 0/Out = 1) – [11110000] or [Select 11111111 to 00000000]
Select input or output bit direction settings from [11111111] to [00000000], where
[11110000] is the default setting for all eight bits/pins.
♦ Port Initialize Value – [Select 11111111 to 00000000] or [00000000]
Select port initialization values from [11111111] to [00000000], where [00000000] is the
default setting for all eight bits/pins.
• On-Board Controllers
♦ Floppy – [Disabled] or [Enabled]
* If this field is set to [Enabled], then the on-board Floppy controller is used.
♦ Primary IDE – [Disabled] or [Enabled]
* If this field is set to [Enabled], then the on-board Primary IDE controller is used.
♦ Secondary IDE – [Disabled] or [Enabled]
* If this field is set to [Enabled], then the on-board Secondary IDE controller is used.